Clean up. - Simplify variable initialization in the completion handlers. - Move another field out of struct rpcrdma_frwr. Signed-off-by: Chuck Lever <chuck.lever@xxxxxxxxxx> --- net/sunrpc/xprtrdma/frwr_ops.c | 35 +++++++++++++++-------------------- net/sunrpc/xprtrdma/xprt_rdma.h | 2 +- 2 files changed, 16 insertions(+), 21 deletions(-) diff --git a/net/sunrpc/xprtrdma/frwr_ops.c b/net/sunrpc/xprtrdma/frwr_ops.c index d3c18c776bf9..2a886a28d82b 100644 --- a/net/sunrpc/xprtrdma/frwr_ops.c +++ b/net/sunrpc/xprtrdma/frwr_ops.c @@ -366,9 +366,7 @@ struct rpcrdma_mr_seg *frwr_map(struct rpcrdma_xprt *r_xprt, static void frwr_wc_fastreg(struct ib_cq *cq, struct ib_wc *wc) { struct ib_cqe *cqe = wc->wr_cqe; - struct rpcrdma_frwr *frwr = - container_of(cqe, struct rpcrdma_frwr, fr_cqe); - struct rpcrdma_mr *mr = container_of(frwr, struct rpcrdma_mr, frwr); + struct rpcrdma_mr *mr = container_of(cqe, struct rpcrdma_mr, mr_cqe); /* WARNING: Only wr_cqe and status are reliable at this point */ trace_xprtrdma_wc_fastreg(wc, &mr->mr_cid); @@ -405,9 +403,9 @@ int frwr_send(struct rpcrdma_xprt *r_xprt, struct rpcrdma_req *req) trace_xprtrdma_mr_fastreg(mr); frwr = &mr->frwr; - frwr->fr_cqe.done = frwr_wc_fastreg; + mr->mr_cqe.done = frwr_wc_fastreg; frwr->fr_regwr.wr.next = post_wr; - frwr->fr_regwr.wr.wr_cqe = &frwr->fr_cqe; + frwr->fr_regwr.wr.wr_cqe = &mr->mr_cqe; frwr->fr_regwr.wr.num_sge = 0; frwr->fr_regwr.wr.opcode = IB_WR_REG_MR; frwr->fr_regwr.wr.send_flags = 0; @@ -463,9 +461,7 @@ static void frwr_mr_done(struct ib_wc *wc, struct rpcrdma_mr *mr) static void frwr_wc_localinv(struct ib_cq *cq, struct ib_wc *wc) { struct ib_cqe *cqe = wc->wr_cqe; - struct rpcrdma_frwr *frwr = - container_of(cqe, struct rpcrdma_frwr, fr_cqe); - struct rpcrdma_mr *mr = container_of(frwr, struct rpcrdma_mr, frwr); + struct rpcrdma_mr *mr = container_of(cqe, struct rpcrdma_mr, mr_cqe); /* WARNING: Only wr_cqe and status are reliable at this point */ trace_xprtrdma_wc_li(wc, &mr->mr_cid); @@ -484,9 +480,8 @@ static void frwr_wc_localinv(struct ib_cq *cq, struct ib_wc *wc) static void frwr_wc_localinv_wake(struct ib_cq *cq, struct ib_wc *wc) { struct ib_cqe *cqe = wc->wr_cqe; - struct rpcrdma_frwr *frwr = - container_of(cqe, struct rpcrdma_frwr, fr_cqe); - struct rpcrdma_mr *mr = container_of(frwr, struct rpcrdma_mr, frwr); + struct rpcrdma_mr *mr = container_of(cqe, struct rpcrdma_mr, mr_cqe); + struct rpcrdma_frwr *frwr = &mr->frwr; /* WARNING: Only wr_cqe and status are reliable at this point */ trace_xprtrdma_wc_li_wake(wc, &mr->mr_cid); @@ -529,16 +524,17 @@ void frwr_unmap_sync(struct rpcrdma_xprt *r_xprt, struct rpcrdma_req *req) r_xprt->rx_stats.local_inv_needed++; frwr = &mr->frwr; - frwr->fr_cqe.done = frwr_wc_localinv; last = &frwr->fr_invwr; last->next = NULL; - last->wr_cqe = &frwr->fr_cqe; + last->wr_cqe = &mr->mr_cqe; last->sg_list = NULL; last->num_sge = 0; last->opcode = IB_WR_LOCAL_INV; last->send_flags = IB_SEND_SIGNALED; last->ex.invalidate_rkey = mr->mr_handle; + last->wr_cqe->done = frwr_wc_localinv; + *prev = last; prev = &last->next; } @@ -547,7 +543,7 @@ void frwr_unmap_sync(struct rpcrdma_xprt *r_xprt, struct rpcrdma_req *req) * last WR in the chain completes, all WRs in the chain * are complete. */ - frwr->fr_cqe.done = frwr_wc_localinv_wake; + last->wr_cqe->done = frwr_wc_localinv_wake; reinit_completion(&frwr->fr_linv_done); /* Transport disconnect drains the receive CQ before it @@ -579,9 +575,7 @@ void frwr_unmap_sync(struct rpcrdma_xprt *r_xprt, struct rpcrdma_req *req) static void frwr_wc_localinv_done(struct ib_cq *cq, struct ib_wc *wc) { struct ib_cqe *cqe = wc->wr_cqe; - struct rpcrdma_frwr *frwr = - container_of(cqe, struct rpcrdma_frwr, fr_cqe); - struct rpcrdma_mr *mr = container_of(frwr, struct rpcrdma_mr, frwr); + struct rpcrdma_mr *mr = container_of(cqe, struct rpcrdma_mr, mr_cqe); struct rpcrdma_rep *rep; /* WARNING: Only wr_cqe and status are reliable at this point */ @@ -630,16 +624,17 @@ void frwr_unmap_async(struct rpcrdma_xprt *r_xprt, struct rpcrdma_req *req) r_xprt->rx_stats.local_inv_needed++; frwr = &mr->frwr; - frwr->fr_cqe.done = frwr_wc_localinv; last = &frwr->fr_invwr; last->next = NULL; - last->wr_cqe = &frwr->fr_cqe; + last->wr_cqe = &mr->mr_cqe; last->sg_list = NULL; last->num_sge = 0; last->opcode = IB_WR_LOCAL_INV; last->send_flags = IB_SEND_SIGNALED; last->ex.invalidate_rkey = mr->mr_handle; + last->wr_cqe->done = frwr_wc_localinv; + *prev = last; prev = &last->next; } @@ -649,7 +644,7 @@ void frwr_unmap_async(struct rpcrdma_xprt *r_xprt, struct rpcrdma_req *req) * are complete. The last completion will wake up the * RPC waiter. */ - frwr->fr_cqe.done = frwr_wc_localinv_done; + last->wr_cqe->done = frwr_wc_localinv_done; /* Transport disconnect drains the receive CQ before it * replaces the QP. The RPC reply handler won't call us diff --git a/net/sunrpc/xprtrdma/xprt_rdma.h b/net/sunrpc/xprtrdma/xprt_rdma.h index 0cf073f0ee64..f72b69c3f0ea 100644 --- a/net/sunrpc/xprtrdma/xprt_rdma.h +++ b/net/sunrpc/xprtrdma/xprt_rdma.h @@ -231,7 +231,6 @@ struct rpcrdma_sendctx { */ struct rpcrdma_frwr { struct ib_mr *fr_mr; - struct ib_cqe fr_cqe; struct completion fr_linv_done; union { struct ib_reg_wr fr_regwr; @@ -247,6 +246,7 @@ struct rpcrdma_mr { struct scatterlist *mr_sg; int mr_nents; enum dma_data_direction mr_dir; + struct ib_cqe mr_cqe; struct rpcrdma_frwr frwr; struct rpcrdma_xprt *mr_xprt; u32 mr_handle;